<template>
  <div>

  </div>
</template>
<script setup lang="ts">
//字符串
let str:string = '123'
//数字
let num: number = 7
//布尔
let bool: boolean = true

//symbol
let sym: symbol = Symbol();

//bigint
let big: bigint = 10n
//null
let nu: null = null
//undefined
let un: undefined = undefined
console.log(str,num,bool,sym,big,nu,un)
</script>

<style scoped>
.logo {
  height: 6em;
  padding: 1.5em;
  will-change: filter;
  transition: filter 300ms;
}

.logo:hover {
  filter: drop-shadow(0 0 2em #646cffaa);
}

.logo.vue:hover {
  filter: drop-shadow(0 0 2em #42b883aa);
}
</style>
